In modern music: Pertaining to or including notes which do not belong to the diatonic scale; admitting notes which are marked with accidentals…

having eight strings or notes.

Of or relating to an eight-note scale. Obsolete.

†(a) Music relating to a scale of eleven notes (cf. hendecachord n.) (obsolete); (b) consisting of eleven clauses.

Consisting of three tones or notes.

Consisting of five notes or sounds; designating a form of scale without semitones (often equivalent to the ordinary major scale with the fourth and…

Relating to or consisting of five notes or sounds; = pentatonic, adj.

Designating a version of the minor diatonic scale containing a major sixth and seventh when ascending, and a minor sixth and seventh when…

consisting of seven notes.

Music. Designating a scale or mode with less than seven notes, esp. the pentatonic scale.

(attributive) of the technique of musical composition developed by Arnold Schoenberg (1874–1951): using the twelve notes of the chromatic scale so…

= twelve-tone n.

Characterized by hexatones.

Designating a scale of eight notes made up of alternating tone and semitone intervals. Of a composition or musical style: based on or using…